Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb7629acc61c67fe…

MALICIOUS

PDF

33.4 KB Authoring application: pdf-parser
MD5: a19488a077535c2d1043dd29f653cc79 SHA-1: ba24586fd499de39221b64aac19c2afdb0d0ee95 SHA-256: cb7629acc61c67feffd5c9d5a8014a304dd1a96e642a07da5b6a3a91d6b2209f
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of external links, a common technique for SEO spam or distributing malicious content. ClamAV identified this as Pdf.Phishing.TtraffRobotInstall, indicating a phishing or traffic redirection purpose. The ML classifier also strongly flagged this PDF as malicious. No scripts were extracted, but the primary attack pattern involves directing users to a network of linked PDFs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • ClamAV: Pdf.Phishing.TtraffRobotInstall-7605656-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.TtraffRobotInstall-7605656-0
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://sativic.com/uploads/1/3/0/5/130550708/cd7aa1333.pdf
    • https://mosokekajuju.weebly.com/uploads/1/3/0/6/130604030/bekikoviwowuvo.pdf
    • http://duna.pp-offer.xyz/uploads/2020/01/28/565cbaa67.pdf
    • http://runa.market-voice.ru/uploads/2020/01/28/bfa9ec.pdf
    • http://beatgodadonis.com/uploads/1/3/0/6/130639462/2507611.pdf
    • http://valcom.tv/uploads/1/3/0/6/130639107/tupizibu-wezepijenoguvul-juvusunivubime-bigizavivu.pdf
    • http://emilylimes.com/uploads/1/3/0/6/130604682/wivarorokivix-kixaza-voxaluvurawikap-ziwisirit.pdf
    • http://natashanatraj.com/uploads/1/3/0/2/130273899/3602495.pdf
    • http://coldcurve.net/uploads/1/3/0/6/130621682/vasar.pdf
    • http://moringanutritional.com/uploads/1/3/0/5/130539913/jamorimijepu.pdf
    • http://morganmwilliams.com/uploads/1/3/0/5/130550723/130550723.html#puzzles+in+wood+pdf

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00001391.bin
33decbffd223ee96621f4e939514cc636f1ef1b832ecec71f501453d4877f354		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1391 7908 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.